diff --git a/backend/app/Model/Refund.php b/backend/app/Model/Refund.php
index e96e7de..e989df1 100644
--- a/backend/app/Model/Refund.php
+++ b/backend/app/Model/Refund.php
@@ -4,7 +4,6 @@ declare(strict_types=1);
 
 namespace App\Model;
 
-use Hyperf\DbConnection\Model\Model;
 
 /**
  * @property int $id 主键